. Biochemistry of plants and animals, an introduction. Biochemistry. 222 PLANT BIOCHEMISTRY consideration of the metabolism of carbohydrates by animals, where important quantities of energy are known to be involved. When formed from any source, part of the glucose-1-phosphate undergoes the reactions of the glycolytic or Embden-Meyerhof pathway diagrammed on page 168, leading to pyruvate. The pyruvate is then converted to carbon dioxide and water via the tricarboxylic acid cycle shown on page 171. In the higher plants and animals most of the energy obtained during respiration comes from the oxi
. Biochemistry of plants and animals, an introduction. Biochemistry. 222 PLANT BIOCHEMISTRY consideration of the metabolism of carbohydrates by animals, where important quantities of energy are known to be involved. When formed from any source, part of the glucose-1-phosphate undergoes the reactions of the glycolytic or Embden-Meyerhof pathway diagrammed on page 168, leading to pyruvate. The pyruvate is then converted to carbon dioxide and water via the tricarboxylic acid cycle shown on page 171. In the higher plants and animals most of the energy obtained during respiration comes from the oxidations of the DPNH and TPNH formed during the degradation of pyruvate. Not all the glucose-6-phosphate formed follows the Embden-Meyer- hof-tricarboxylic acid cycle sequence. Most, perhaps all, higher plants, including pea, cucumber, and many seeds, convert part of this hexose- phosphate to carbon dioxide by a different route. On reaching ribu- TPN' TPNH CH^OFOg^ Glucose - 6- phosphate glucose-6- phosphate dehydrogenase. =0 H OH 6-phosphogluconolactone gUiconolactonase CH2OPO3". Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Mallette, M. Frank (Manney Frank), 1917-. New York, Wiley
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